The nonpartisan Campaign Legal Center filed a complaint with the US Office of Government Ethics on Thursday, arguing that the cash handouts to close aides, including Natalie Harp, appear to violate restrictions on outside compensation for federal employees.
The payments, disclosed in financial forms released by the administration and described as a "cash gift for the holidays," totaled $157,000. Harp, communications advisor Margo Martin and executive assistant Chamberlain Harris each received $45,000. Director of Oval Office Operations Walt Nauta received $22,000.
The complaint argues that an investigation is "clearly warranted" because federal employees are generally barred from receiving compensation beyond their government salaries. The Campaign Legal Center did not immediately respond to a request for further comment.
The White House has defended the gifts, describing them as personal in nature and unrelated to the staffers' official duties. In a statement, a White House official said the president "has a longstanding practice of giving Christmas gifts to people in his orbit, including at times employees and aides, both in government and in his time in the private sector."
The official added: "The gifts at issue here have nothing to do with any of these individuals' official government duties, and are entirely permissible under relevant legal and ethical standards."
The four recipients are among Trump's most loyal aides. Harp, 35, is often trusted with typing out the president's social media posts. Nauta has served as Trump's personal aide for years, while Martin and Harris are key communications and support staff.
No other White House staffer has declared any gifts from the president, the disclosures show. The White House did not respond to questions about why other aides, including top advisors to First Lady Melania Trump, were not included.